Patent classifications
C09K19/3838
Liquid crystalline composition, side chain type polymer liquid crystalline compound, light absorption anisotropic film, laminate, and image display device
A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 has a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant σp of greater than 0 at a terminal of the mesogenic group, and the repeating unit 2 has a mesogenic group and a group having a Hammett's substituent constant σp of 0 or less at a terminal of the mesogenic group.
Method of manufacturing modified liquid crystal polymer, liquid crystal polymer composition and method for changing melting point of liquid crystal polymer
A method of manufacturing a modified liquid crystal polymer includes: providing a liquid crystal polymer having a first melting point; heating the liquid crystal polymer to a first temperature and maintaining at the first temperature for a first time period, in which the first temperature is lower than or equal to the first melting point; and cooling the liquid crystal polymer to a second temperature to form a first modified liquid crystal polymer, the second temperature being lower than the first temperature, the first modified liquid crystal polymer having a second melting point, in which the second melting point is higher than the first melting point.
Camera Module Containing A Polymer Composition
A polymer composition comprising from about 50 wt. % to about 90 wt. % of a polymer matrix, from about 10 wt. % to about 40 wt. % of inorganic filler particles, and from about 0.1 wt. % to about 10 wt. % of an impact modifier is provided. The polymer matrix includes a liquid crystalline polymer containing one or more repeating units derived from a hydroxycarboxylic acid, wherein the hydroxycarboxylic acid repeating units constitute about 50 mol. % or more of the polymer, and further wherein the liquid crystalline polymer containing repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more of the polymer. The polymer composition exhibits a tensile elongation of about 4.5% or more and a Charpy notched impact strength of about 100/m.sup.2 or more.
Liquid crystal polymer, composite composition, article, battery case, and battery
A liquid crystal polymer including structural units derived from an aromatic hydroxy carboxylic acid in an amount of greater than about 30 mol % and less than or equal to about 50 mol %, an aromatic dicarboxylic acid which includes about 50 mol % or greater of a structural unit derived from a compound including two carboxyl groups at a meta-position of an aromatic ring in an amount greater than or equal to about 50 mol % of the amount of the structural unit derived from the aromatic hydroxy carboxylic acid, each based on total moles of the structural units in the liquid crystal polymer, and an aromatic diol that is 4,4′-dihydroxybiphenyl, hydroquinone, or a combination thereof; a composite composition including the liquid crystal polymer, an article produced from the liquid crystal polymer or the composite composition, a battery case including the article, and a battery including the battery case and an electrode assembly.
THERMALLY CONDUCTIVE ELECTRICALLY INSULATING THERMOPLASTIC MATERIALS
Thermally conductive electrically insulating compositions and structures and devices comprising such materials. In various embodiments, such materials comprise liquid crystal polymer and fillers, wherein the fillers comprise boron nitride and glass fiber. In various embodiments, the liquid crystal polymer is selected from the group consisting of semi-aromatic copolyesters, copolyamides, polyester-co-amides, and mixtures thereof.
LIQUID CRYSTAL COMPOSITION, FLUORINE-CONTAINING POLYMER, OPTICALLY ANISOTROPIC LAYER, LAMINATE, AND IMAGE DISPLAY DEVICE
An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed cissing during formation of an optically anisotropic layer and an excellent alignment degree, a fluorine-containing polymer, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention is a liquid crystal composition including a liquid crystal compound and an interface improver, in which the interface improver is a fluorine-containing polymer having a repeating unit B1 represented by Formula (B-1) and a repeating unit B2 having a fluorine atom.
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COMPOSITE, SLURRY COMPOSITION, FILM, AND METAL-CLAD LAMINATE
A composite includes a liquid crystal polyester that is soluble in a solvent; and liquid crystal polymer particles that are insoluble in a solvent, have a melting point of 270° C. or more, and have a cumulative distribution 50% diameter D.sub.50 of 20 μm or less and a cumulative distribution 90% diameter D.sub.90 of 2.5 times or less the D.sub.50 in a particle size distribution.
DECORATIVE FILM, DECORATIVE MOLDED ARTICLE, DECORATIVE PANEL, AND ELECTRONIC DEVICE
The present disclosure provides a decorative film including a base material and an optical reflective layer coloring by optical interference or structural color, in which at least two or more layers of the optical reflective layer are laminated, and diffuse reflectivities of the respective optical reflective layers are different from each other, or a printing layer is laminated between the respective optical reflective layers; a decorative molded article; a decorative panel; and an electronic device.
Photoactive polymer materials
The present invention relates to novel photoactive polymer materials and their use as orienting layer for liquid crystals, which are used for the production of non-structured and structured optical elements or electro-optical elements and multi-layer systems.
Liquid crystal display device, method for manufacturing liquid crystal display device, and electronic apparatus
A liquid crystal display device includes an element substrate, a counter substrate, a liquid crystal layer sandwiched between the element substrate and the counter substrate, reflective electrodes placed on a surface of the element substrate that is located on the liquid crystal layer side, and a pair of alignment films each of which is placed on a corresponding one of a surface of the element substrate that is located on the liquid crystal layer side and a surface of the counter substrate that is located on the liquid crystal layer side. A liquid crystal composition contained in the liquid crystal layer contains a compound containing an alkoxy group. The alignment films contain a polymer including polyimide. The polyimide is derived from a polyamic acid and contains a side chain represented by Formula (1).